Friday Harbor Airport Weather Forecast

    • 42
    • 51

    Rain

    • 45
    • 50

    Rain

    • 44
    • 53

    Rain

    • 38
    • 52

    Rain Likely

    • 36
    • 47

    Rain/Snow Likely

    • 36
    • 47

    Rain/Snow

Today 5 Mar San Juan County

Partly sunny with a slight chance of rain in the Morning, then sunny early in the afternoon. Mostly sunny with a slight chance of rain late in the afternoon. Highs near 50. West wind 10 to 20 Mph. Gusts to 30 Mph in the morning.

Tonight 5 Mar San Juan County

Mostly cloudy in the Evening, then a chance of rain late in the evening. Cloudy with rain at Times after midnight. Rainfall Amounts a tenth to a quarter of an inch possible. Lows in the lower to mid 40s. Southwest wind around 10 Mph becoming southeast after midnight.

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Friday Harbor Airport Temperature Statistics

March Temperature

Friday Harbor Airport (0 miles)

  • Lowest 2 March, 2026

    34 °F

  • Average March

    43 °F

  • Highest 2 March, 2026

    55 °F

Climate (2021–Present)

Friday Harbor Airport (0 miles)

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  • Average Low 2021–2026

    44.4 °F

  • Average 2021–2026

    51.9 °F

  • Average High 2021–2026

    59.7 °F
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